Minify Code
Shrink JavaScript with terser (compress + mangle), CSS by stripping comments and whitespace, and HTML while preserving <pre>, <textarea>, <script>, and <style>. See original vs minified size and percent saved after each run.
Features
- JavaScript via terser (compress + mangle)
- CSS whitespace and comment stripping
- HTML minification that preserves pre/script/style
- Byte-level savings breakdown
Frequently Asked Questions
- Which minifier is used for JavaScript?
- terser, the same library Webpack and Rollup use by default. Compression and variable mangling are both enabled.
- Is my code uploaded anywhere?
- No. All minification runs in your browser. Nothing is sent to a server.
- Does the HTML minifier break <pre> or <script> content?
- No. Contents of <pre>, <textarea>, <script>, and <style> are extracted, preserved verbatim, and spliced back in after whitespace collapse.